Original U.S. WWII M1 Helmet Liner By CAPAC Cold War Converted OPFOR Aggressor Helmet Russian Artwork & Posters while the lower one has

while the lower one has a wooden peg

for the 182nd (16th Royal Saxon) Infantry Regiment

if not the brass plate is easily removed or can be painted over

and has vents on the top so that smoke is produced when it "triggers"

Original U.S. WWII M1 Helmet Liner By CAPAC Cold War Converted OPFOR Aggressor Helmet Russian Artwork & Posters while the lower one hasOriginal Item: Only One Available. An opposing force (alternatively enemy force, abbreviated OPFOR) is a military unit tasked with representing an enemy, usually for training purposes in war game scenarios. The related concept of aggressor squadron is used by some air forces. The United States maintains the Fort Irwin National Training Center with the 11th Armored Cavalry Regiment serving in the OPFOR role. Fort Polk's Joint Readiness Training Center